[kevinholesh]

It depends on how fast Typekit's server responds. I'm sure it is extra slow today. I did some unofficial benchmarks on the service while it was still in beta:

http://iloveusability.com/usability-review/typekit/

It'll be interesting to see how well their servers perform under a heavier load.

[ErrantX]

That's put me off a lot; I'd expect them to be using a service that is very stable to scale now they have launched.

The fact their own site is intermittent today is worrying.